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Feb. 3, 1931. c. STILL COKE OVEN AND DOOR THEREFOR Filed Oct. 26, 1926 Fg?. j.

Patented Feb. 3, 1931 UNrrED! stares CARL STLL, 0F RECKLING-A'USEN, GERMANY .COKE oven nnnnoon, Tiannnroiaf Application filed October 26, m26, Serial No.

My invention relates to an improved means in horizontal coke ovens for withdrawing and leading gaseous productsof distillation from the interior of the oven outwards, and the e main object aimed to is to replace and simplify in av most advantageousv manner the means hitherto used therefor.

One essential'feature of the invention consists in an arrangement in horizontal coke' le ovens'for withdrawing the gaseous 'products of distillation directly from the ovencharge adjacent to the doors through oneor both of the doors which close the ends of th-e ovens. Anpexample of a construction according to theinvention isY represented in the accompanying drawing in which Fig. lf shows a vertical longitudinal section of the chamber of a `horizontal'colfe oven asia brokenfend portion'of the length ofthe chamber, and Fig. 2 isa horizontal section taken along the line 2-#2 of'Fig. l. rlhe 1colte `oven chamberA 0Ll is closed at Vthe end shown by the door b and'is filled'vinternally up to the rlevel i with the coal c to `be colted. The'cole oven door I) has a hollow space c Vwhich is boundeditowards' the side of theV chamber by slats f arranged like Venetian'blinds. ln the horizontal direction the slats f may extend over the whole width of 'the door, orof the oven chamber, as hasbeen shown by Fig. 2, or'only over a p'art thereof, accor'dingto the requirements' and the eect which the suction through the door is'intended to produce on the working of the oven. in theupright direction the'surface taken up bythe slats f terminates, preferably, at.

a certain distance below the upper surface z' of the charge; -in the downward direction it can extend to the sole s of the chamber or at a certain level above the sole. rihe hollow space e of the door provided behind the slats 7 extends to its lower edge. Where the lower edge of the door rests on the sole s of the oven, a passage ,71, is provided in the latter which contains a closing valve lm, and

terminates in a discharge conduit ,7c arranged in the bott-om brickwork at a level below the `sole s of the oven chamber and extending over the whole length of the oven battery,Y

This conduit 7c isconnected to a gas suction 144,284, and in Germany November 5, 1 925. v

apparatus (not shown). In working, after the oven has been emptied of the coke charge of the preceding distillation period, the door is inserted in the usual manner and 'sealed up, whereupon the oven, after the sec'ond'door is also inserted, is charged with' freshcoal. W' hen the doorl b is inserted, the hollowspace c of the door vdirectly connected to the conduitc in the simplest Ypossible manner'. xNhei'i the yvalve m is opened, the gaseous products of distillation are immediately led by means of the suction communicated to the conduit 7c from the interior of the charge of coal c i' through. 'thedoor b1 into1 the conduit'c, as illustrated by the arrows shownin Fig.A l. When the chargehas been coked, 'the valve m is again closed and thevdoor Z2 removed in the usual manner. The passagevh, which is now open, ispreferably covered during the discharge ofthe colte by a plate placed at 'I0 the level of the sole of the chamber; (Not shown); This `covering would be unnecessary if the valve m were so constructed and arranged that in the closed condition it forms a continuation of the sole of the oven chamber. After thesepreliminar'yj measures the coke c can be discharged without hindrance from that side of Vthe'oven chamber since the conduit 7c is at a lower level than the solo sof the'oven chamber a. f, '-The arrangement can be employed for one only or for both oven chamber doors. If only one door is provided it is advisable` to select that sideof the chamber where the coke discharging machine is placed, because then e the building and accessibility of the conduit 7c is facilitated and the temporary covering of the passage at the level of the-chamber sole during the discharge 'is unnecessary.'

The'invention is not-restricted to the con'- structionshownV in the drawing. More particularly7 the'lowe'rY part of 'the' door` may be` connected with the conduit 7c, whichis placed below ther 4sole s Vof :the chamber, by other means than through a'pa-ssage 7L' which in the ordinary, positionrof the door is rdirectly 'connected to the hollow space e.r Also, obviously the inner: surface ofthe door may be arranged in other ways in order to pro; vide the necessary free withdrawal .open- Y sist in the eXtreme simplicity of the con ings for the' gaseous products of distillation, than by employment of the slats f, for eX- ample by providing perforated plates, openings in the door lining, and the like.

The advantages of the arrangement construction and inthe convenience of carrying out the working. The usual .gas collecting apparatus arranged on thertop of the oven and the space required therefor'are entirely omitted. The bottom conduit, serving to replace these, can be very easily vapplied, more particularly in existing oven of distillation from said chamber, and va communicating connection between -said hollow space and said means. Y

2.*-In a horizontal coke oven having an open end,a door vforclosing saidopen end andprovidedwith a hollow spaceconnnunicating with the coking chamber of the oven, afsuction conduit arranged at a level below the sole of lsaid coking chamber, a communicating,connection between said suction conduit and the hollow space, together with'means for :cutting oli said communication. Y

'3. Ina horizontal-"coke oven having-an open end, a doo'rfor closing said end provided with a hollowspace communicating with the coking.` chamber of the oven, said door having an opening lin itsflower-edge, a suction conduitarranged at -a level below the sole of thefchamber, a passageconnect- `ing said 'conduit `and saidl opening, and a damperarranged infsaid passage. Y

'4.' In-'a vhorizontal coke oven having f an open end, a doorarranged tov closelsaid'end and/provided with a `hollow space extending tothe bottom of the door, a suction conduit arranged below the vlevel 'of the sole of the: coking chamber, .a passage* connecting said conduit and KVsaid hollow-space, a valve for. closing fsai'd passage, and spacedA inclinedlslats arranged acrossthe inner face `of saidfdoor f and afording 'communication between the lcoking chamber,-aj-ndY said Vspace but preventing accessy of-coal tols'aid 1 space.

' vAn oven door Afor horizontal cokeojvens i comprising ivan vouter -face portion land anA ed to lead off the volatile products of'distillation from the coking chamber of a coke oven, said door having an opening in its lower edge for the discharge of the volatile products or" distillation from said space in a downward direction.

6. An oven door for horizontal coke ovens comprising an outerimperorate VIface portion and an inner face portion composed of spaced inclined slats defining with the outer imperorate face a'hollow space adapted to Vlead ott the volatile products of distillation, l

said-doorhavinglan opening in its lower edge, and a suction passage inthe cokeoven communicating with 'the opening Y'inl'the lower edgeof thedoor.

VAn oven-'door forhorizontal coke .ovens comprising van outer V4imperforate face portionand aninner vface'v portion composed in part ofspaced Ainclined slats Adefining with the outenimperforate face a hollow space,

said door havinguanopeningin its lower edge arranged whenin operative closed position to communicate V.with ya' suction passage below the sole voiffthe voven chamber, v. whereby the volatile products of distillation may bewithdrawn"fromv the`A coking chamber outwardly through-:said slatted `in- V nerl face, hollow space and opening'in the lower Vedge ofthe door, downwardly and 1:.

outwardly. Y

8. An ovenidoorrfor horizontal .coke ovens' f Comprising an outer imperfora'te Yface portion and an inner face portion defining with the outer `imperforatel portion, .a hollow y space, said innerface portionwpro'videdwith openings producing communication, with said :space'and the coke oven, said vdoor` havingan opening in its 'lower yedge arranged when in operative closed .positionto ycorn- I municate withl thef suction passage below the sole vof the coke oven and a Vsuctionypassage :in-the' sole4 of the :coke ovenfwhereby the volatile products "of distillationjmay be withdrawn from the lcokingy chamber outwardly throughlthe-openings 'in the inner face of :the door, hollow ysp'ace'and.opening in the loweredge of ythe doordownwardly and outwardly. f .v VIn .testimony `whereof I aliX ymy signature.

- CARL STILL. 

